Perform the service for the oil boiler, replaced the nozzle, filter, and pump screen. Open and brushed the heat exchanger and vacuumed out. Started up the burner and performed a full combustion test, the burner is operating properly at this time. I did find two issues that need to be addressed, the combustion chamber inside the boiler is falling apart and needs to be replaced. This will expose more of the heat exchanger to direct heat which could cause premature failure and also because of the debris will cause the flame pattern to be distorted and create other issues as far as proper burn is concerned. Also found that the zone valve for the kitchen/ family room / laundry room area is opening however the end switch is not closing properly and is not cycling the boiler on. The zone valve head will need to be replaced.
